Composition and formed article

Abstract

Provided is a composition capable of providing a formed article that, even when using continuous fibers, has excellent interfacial adhesion between the continuous fibers and a matrix resin, and as a result, has excellent mechanical strength (e.g., impact resistance and flexural strength). One aspect of a composition according to the present invention includes a polymer (A) including an amino group, fibers (B), and a thermoplastic resin (C), in which a content ratio of the fibers (B) is 70 parts by mass or more and 250 parts by mass or less based on 100 parts by mass of the thermoplastic resin (C). Another aspect of the composition according to the present invention includes a polymer (A) including an amino group, a non-woven fabric (B′), and a thermoplastic resin (C).

Description

This application is a national stage application under 35 USC § 371 of international application PCT / JP2016 / 074368 filed Aug. 22, 2016, which claims priority from Japan application 2015-072649 filed Sep. 2, 2015, and Japan application 2015-243818 filed Dec. 15, 2015, the disclosures of which are incorporated herein in their entirety by reference.TECHNICAL FIELDThe present invention relates to a composition that includes fibers, and a formed article that is obtained by forming the composition.BACKGROUND ARTA fiber-reinforced plastic (FRP) is a material produced by binding reinforcing fibers (e.g., glass fibers and carbon fibers) using a resin. The FRP is a composite material that exhibits excellent mechanical strength, heat resistance, formability, and the like. Therefore, the FRP is widely used in a wide variety of fields including the airplane industry, the space industry, the vehicle industry, the building material industry, the sports industry, and the like.In particular, a carbo...

AI Technical Summary

Benefits of technology

The composition achieves improved adhesion and mechanical strength, including flexural strength and impact resistance, by using a polymer with an amino group to bond effectively with the fibers and resin, reducing crack propagation and enhancing the overall performance of the CFRP.

Problems solved by technology

However, the CFRP produced by the above-mentioned method has insufficient adhesion between the continuous fibers, the non-woven fabric, or the like and a matrix resin in some cases, and is also insufficient in terms of improvements in mechanical properties (e.g., flexural strength) in some cases.

Accordingly, when a load (e.g., flexural load) is applied to the CFRP produced by the above-mentioned method, cracks sometimes occur at an interface between the carbon fibers and the matrix resin.

Images